** Canadian oil and gas producer's shares up 2.9 pct at $14.35
** Desjardins raises to "buy" from "hold"; National Bank raises price target to $26 from $25
** Company reports 49 pct rise in Q4 petroleum and natural gas sales
** Desjardins analysts say they expect debt levels to be addressed through strategic transaction in near term
** Baytex's total long-term debt was C$1.42 bln as of Dec. 31; cash flow from operating activities was C$974.5 mln
** Of 7 analysts covering stock, 3 have 'buy' rating and 5 have 'hold'
** Up to Thursday's close, stock had fallen 62 pct in past 12 months